:root {
            --primary: #FF2E93; /* 桃红 */
            --primary-hover: #E91E63;
            --primary-light: #FFF0F6;
            --secondary: #1F2421; /* 深色 */
            --text-dark: #2B2D42;
            --text-light: #8D99AE;
            --bg-light: #F8F9FA;
            --bg-card: #FFFFFF;
            --border-color: #E2E8F0;
            --transition: all 0.3s ease;
        }

        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }

        html {
            scroll-behavior: smooth;
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
            color: var(--text-dark);
            background-color: var(--bg-light);
        }

        body {
            line-height: 1.6;
        }

        a {
            text-decoration: none;
            color: inherit;
            transition: var(--transition);
        }

        /* 统一外层容器 */
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }

        section {
            padding: 80px 0;
            position: relative;
        }

        .section-header {
            text-align: center;
            margin-bottom: 50px;
        }

        .section-header h2 {
            font-size: 2.2rem;
            color: var(--secondary);
            margin-bottom: 15px;
            position: relative;
            display: inline-block;
        }

        .section-header h2::after {
            content: '';
            display: block;
            width: 60px;
            height: 4px;
            background: linear-gradient(90deg, var(--primary), #FF76B7);
            margin: 8px auto 0;
            border-radius: 2px;
        }

        .section-header p {
            color: var(--text-light);
            font-size: 1.1rem;
            max-width: 600px;
            margin: 0 auto;
        }

        /* 顶部导航 */
        header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(10px);
            border-bottom: 1px solid var(--border-color);
            box-shadow: 0 2px 10px rgba(0,0,0,0.02);
        }

        .nav-wrapper {
            display: flex;
            justify-content: space-between;
            align-items: center;
            height: 70px;
        }

        .logo-area {
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .ai-page-logo {
            height: 40px;
            width: auto;
        }

        .brand-name {
            font-size: 1.4rem;
            font-weight: 800;
            background: linear-gradient(135deg, var(--primary), #D81B60);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        nav {
            display: flex;
        }

        .nav-link {
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--text-dark);
            padding: 8px 12px;
            border-radius: 4px;
        }

        .nav-link:hover {
            color: var(--primary);
            background: var(--primary-light);
        }

        .nav-btn {
            background: linear-gradient(135deg, var(--primary), #E91E63);
            color: #fff;
            padding: 8px 20px;
            border-radius: 20px;
            font-weight: 600;
            box-shadow: 0 4px 10px rgba(255, 46, 147, 0.2);
        }

        .nav-btn:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 15px rgba(255, 46, 147, 0.3);
            color: #fff;
        }

        /* 移动端菜单切换按钮 */
        .menu-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 1.5rem;
            cursor: pointer;
            color: var(--text-dark);
        }

        /* 首页 Hero 首屏 (无图片) */
        .hero-section {
            background: radial-gradient(circle at 10% 20%, rgba(255, 240, 246, 0.7) 0%, rgba(255, 255, 255, 1) 90%);
            padding: 120px 0 80px;
            text-align: center;
            overflow: hidden;
        }

        /* H1 限制在20字内 */
        .hero-section h1 {
            font-size: 3rem;
            line-height: 1.2;
            color: var(--secondary);
            margin-bottom: 25px;
            font-weight: 800;
        }

        .hero-section h1 span {
            background: linear-gradient(135deg, var(--primary), #8E2DE2);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        .hero-subtitle {
            font-size: 1.25rem;
            color: var(--text-light);
            max-width: 800px;
            margin: 0 auto 40px;
        }

        .hero-buttons {
            display: flex;
            justify-content: center;
            gap: 20px;
            margin-bottom: 60px;
        }

        .btn-main {
            background: linear-gradient(135deg, var(--primary), #8E2DE2);
            color: white;
            padding: 16px 36px;
            font-size: 1.1rem;
            font-weight: 700;
            border-radius: 30px;
            box-shadow: 0 10px 20px rgba(255, 46, 147, 0.3);
            transition: var(--transition);
        }

        .btn-main:hover {
            transform: translateY(-3px);
            box-shadow: 0 15px 30px rgba(255, 46, 147, 0.4);
            color: white;
        }

        .btn-sub {
            background: #ffffff;
            color: var(--text-dark);
            border: 2px solid var(--border-color);
            padding: 16px 36px;
            font-size: 1.1rem;
            font-weight: 700;
            border-radius: 30px;
            transition: var(--transition);
        }

        .btn-sub:hover {
            border-color: var(--primary);
            color: var(--primary);
            transform: translateY(-3px);
        }

        /* 数据指标卡片 (首屏内) */
        .hero-stats {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            max-width: 1000px;
            margin: 0 auto;
        }

        .stat-card {
            background: var(--bg-card);
            padding: 25px 20px;
            border-radius: 16px;
            box-shadow: 0 10px 30px rgba(0,0,0,0.03);
            border: 1px solid rgba(0,0,0,0.05);
            transition: var(--transition);
        }

        .stat-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 15px 35px rgba(255, 46, 147, 0.08);
            border-color: rgba(255, 46, 147, 0.2);
        }

        .stat-num {
            font-size: 2.2rem;
            font-weight: 800;
            color: var(--primary);
            margin-bottom: 5px;
        }

        .stat-label {
            font-size: 0.9rem;
            color: var(--text-light);
        }

        /* 关于我们与平台介绍 */
        .about-section {
            background: #fff;
        }

        .about-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 50px;
            align-items: center;
        }

        .about-content h3 {
            font-size: 1.8rem;
            color: var(--secondary);
            margin-bottom: 20px;
        }

        .about-content p {
            color: var(--text-dark);
            margin-bottom: 20px;
            font-size: 1.05rem;
            line-height: 1.8;
        }

        .feature-bullets {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 15px;
            margin-top: 30px;
        }

        .bullet-item {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 600;
        }

        .bullet-icon {
            color: var(--primary);
            font-size: 1.2rem;
        }

        .about-image-wrapper {
            position: relative;
            border-radius: 20px;
            overflow: hidden;
            box-shadow: 0 20px 40px rgba(0,0,0,0.06);
        }

        /* 全平台AIGC服务 (聚合展示) */
        .services-section {
            background: var(--bg-light);
        }

        .tag-cloud {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 12px;
            margin-bottom: 50px;
            max-width: 900px;
            margin: 0 auto 50px;
        }

        .tag-item {
            background: var(--bg-card);
            color: var(--text-dark);
            padding: 8px 18px;
            border-radius: 20px;
            font-size: 0.9rem;
            font-weight: 500;
            border: 1px solid var(--border-color);
            transition: var(--transition);
        }

        .tag-item:hover {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
            transform: translateY(-2px);
        }

        .service-cards {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
        }

        .service-card {
            background: var(--bg-card);
            border-radius: 16px;
            padding: 30px;
            border: 1px solid rgba(0,0,0,0.04);
            box-shadow: 0 8px 24px rgba(0,0,0,0.02);
            transition: var(--transition);
        }

        .service-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 15px 35px rgba(255, 46, 147, 0.08);
            border-color: rgba(255, 46, 147, 0.2);
        }

        .service-icon {
            width: 60px;
            height: 60px;
            border-radius: 12px;
            background: var(--primary-light);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.8rem;
            margin-bottom: 20px;
        }

        .service-card h3 {
            font-size: 1.3rem;
            margin-bottom: 12px;
            color: var(--secondary);
        }

        .service-card p {
            color: var(--text-light);
            font-size: 0.95rem;
            margin-bottom: 20px;
        }

        /* 一站式AIGC制作 (主打场景) */
        .production-section {
            background: #fff;
        }

        .prod-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }

        .prod-card {
            background: var(--bg-light);
            padding: 25px;
            border-radius: 12px;
            transition: var(--transition);
        }

        .prod-card:hover {
            background: var(--primary-light);
            transform: translateY(-4px);
        }

        .prod-card h4 {
            font-size: 1.15rem;
            color: var(--secondary);
            margin-bottom: 10px;
        }

        .prod-card p {
            font-size: 0.9rem;
            color: var(--text-light);
        }

        /* 全行业解决方案 */
        .solutions-section {
            background: var(--bg-light);
        }

        .solution-tabs {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 25px;
        }

        .solution-box {
            background: var(--bg-card);
            border-radius: 16px;
            padding: 30px;
            box-shadow: 0 10px 30px rgba(0,0,0,0.02);
        }

        .solution-box h3 {
            font-size: 1.4rem;
            color: var(--secondary);
            margin-bottom: 15px;
            border-left: 4px solid var(--primary);
            padding-left: 12px;
        }

        /* 标准化AIGC流程 */
        .flow-section {
            background: #fff;
        }

        .timeline {
            display: flex;
            justify-content: space-between;
            position: relative;
            margin-top: 40px;
        }

        .timeline::before {
            content: '';
            position: absolute;
            top: 25px;
            left: 5%;
            right: 5%;
            height: 2px;
            background: var(--border-color);
            z-index: 1;
        }

        .timeline-step {
            width: 18%;
            text-align: center;
            position: relative;
            z-index: 2;
        }

        .step-number {
            width: 50px;
            height: 50px;
            border-radius: 50%;
            background: var(--bg-card);
            border: 2px solid var(--primary);
            color: var(--primary);
            font-weight: 700;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 15px;
            transition: var(--transition);
        }

        .timeline-step:hover .step-number {
            background: var(--primary);
            color: #fff;
            transform: scale(1.1);
        }

        .step-title {
            font-weight: 700;
            margin-bottom: 5px;
            color: var(--secondary);
        }

        .step-desc {
            font-size: 0.85rem;
            color: var(--text-light);
        }

        /* 全国服务网络 & 技术标准 */
        .network-section {
            background: var(--bg-light);
        }

        .network-grid {
            display: grid;
            grid-template-columns: 1.2fr 0.8fr;
            gap: 40px;
        }

        .standards-card {
            background: var(--bg-card);
            border-radius: 16px;
            padding: 30px;
            box-shadow: 0 10px 30px rgba(0,0,0,0.02);
        }

        .standards-card h3 {
            margin-bottom: 20px;
            color: var(--secondary);
        }

        .std-list {
            list-style: none;
        }

        .std-item {
            padding: 12px 0;
            border-bottom: 1px solid var(--border-color);
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        .std-item:last-child {
            border-bottom: none;
        }

        .std-badge {
            background: var(--primary-light);
            color: var(--primary);
            padding: 4px 10px;
            border-radius: 12px;
            font-size: 0.8rem;
            font-weight: 600;
        }

        /* 对比评测板块 */
        .compare-section {
            background: #fff;
        }

        .compare-header-box {
            background: linear-gradient(135deg, #1F2421, #2B2D42);
            color: #fff;
            padding: 30px;
            border-radius: 16px 16px 0 0;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 20px;
        }

        .compare-score {
            display: flex;
            align-items: center;
            gap: 15px;
        }

        .score-big {
            font-size: 3rem;
            font-weight: 800;
            color: var(--primary);
        }

        .score-stars {
            color: #FFD700;
            font-size: 1.4rem;
        }

        .table-responsive {
            width: 100%;
            overflow-x: auto;
            border: 1px solid var(--border-color);
            border-top: none;
            border-radius: 0 0 16px 16px;
        }

        .compare-table {
            width: 100%;
            border-collapse: collapse;
            text-align: left;
            background: #fff;
            min-width: 600px;
        }

        .compare-table th, .compare-table td {
            padding: 18px 24px;
            border-bottom: 1px solid var(--border-color);
        }

        .compare-table th {
            background: var(--bg-light);
            color: var(--secondary);
            font-weight: 700;
        }

        .compare-table tr:last-child td {
            border-bottom: none;
        }

        .highlight-col {
            background: var(--primary-light);
            font-weight: 600;
        }

        /* Token比价参考 */
        .pricing-section {
            background: var(--bg-light);
        }

        .pricing-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
        }

        .pricing-card {
            background: var(--bg-card);
            border-radius: 16px;
            padding: 35px 30px;
            border: 1px solid var(--border-color);
            position: relative;
            overflow: hidden;
            display: flex;
            flex-direction: column;
        }

        .pricing-card.featured {
            border-color: var(--primary);
            box-shadow: 0 15px 35px rgba(255, 46, 147, 0.1);
        }

        .pricing-badge {
            position: absolute;
            top: 15px;
            right: -30px;
            background: var(--primary);
            color: #fff;
            padding: 4px 30px;
            transform: rotate(45deg);
            font-size: 0.75rem;
            font-weight: 700;
        }

        .price-value {
            font-size: 2.2rem;
            font-weight: 800;
            color: var(--secondary);
            margin: 20px 0;
        }

        .price-features {
            list-style: none;
            margin-bottom: 30px;
            flex-grow: 1;
        }

        .price-features li {
            padding: 10px 0;
            border-bottom: 1px solid var(--bg-light);
            font-size: 0.95rem;
            color: var(--text-dark);
        }

        /* 职业技术培训 & 人工智能培训 */
        .training-section {
            background: #fff;
        }

        .training-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
        }

        .training-card {
            background: var(--bg-light);
            border-radius: 16px;
            padding: 30px;
            transition: var(--transition);
            border: 1px solid transparent;
        }

        .training-card:hover {
            background: #fff;
            border-color: var(--primary);
            box-shadow: 0 15px 35px rgba(0,0,0,0.04);
            transform: translateY(-5px);
        }

        .training-meta {
            display: inline-block;
            background: var(--secondary);
            color: #fff;
            padding: 4px 10px;
            border-radius: 4px;
            font-size: 0.8rem;
            margin-bottom: 15px;
        }

        /* 客户案例中心 */
        .cases-section {
            background: var(--bg-light);
        }

        .cases-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
        }

        .case-card {
            background: var(--bg-card);
            border-radius: 16px;
            overflow: hidden;
            box-shadow: 0 10px 30px rgba(0,0,0,0.02);
            transition: var(--transition);
        }

        .case-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 15px 35px rgba(0,0,0,0.06);
        }

        .case-info {
            padding: 25px;
        }

        .case-tag {
            color: var(--primary);
            font-size: 0.85rem;
            font-weight: 700;
            margin-bottom: 10px;
            display: inline-block;
        }

        .case-info h4 {
            font-size: 1.2rem;
            margin-bottom: 10px;
            color: var(--secondary);
        }

        .case-info p {
            color: var(--text-light);
            font-size: 0.9rem;
        }

        /* 客户评论卡片 */
        .comments-section {
            background: #fff;
        }

        .comments-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
        }

        .comment-card {
            background: var(--bg-light);
            padding: 30px;
            border-radius: 16px;
            position: relative;
        }

        .comment-text {
            font-size: 0.95rem;
            color: var(--text-dark);
            margin-bottom: 20px;
            font-style: italic;
        }

        .comment-user {
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .user-avatar {
            width: 45px;
            height: 45px;
            border-radius: 50%;
            background: var(--primary);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
        }

        .user-info h5 {
            font-size: 0.95rem;
            color: var(--secondary);
        }

        .user-info span {
            font-size: 0.8rem;
            color: var(--text-light);
        }

        /* 常见问题 FAQ */
        .faq-section {
            background: var(--bg-light);
        }

        .faq-accordion {
            max-width: 800px;
            margin: 0 auto;
        }

        details {
            background: var(--bg-card);
            border-radius: 8px;
            margin-bottom: 15px;
            border: 1px solid var(--border-color);
            overflow: hidden;
            transition: var(--transition);
        }

        details[open] {
            border-color: var(--primary);
            box-shadow: 0 4px 12px rgba(255, 46, 147, 0.05);
        }

        summary {
            padding: 18px 24px;
            font-weight: 700;
            cursor: pointer;
            outline: none;
            display: flex;
            justify-content: space-between;
            align-items: center;
            color: var(--secondary);
            user-select: none;
        }

        summary::-webkit-details-marker {
            display: none;
        }

        summary::after {
            content: "+";
            font-size: 1.2rem;
            color: var(--primary);
            font-weight: bold;
            transition: transform 0.2s ease;
        }

        details[open] summary::after {
            content: "−";
        }

        .faq-content {
            padding: 0 24px 20px;
            color: var(--text-dark);
            font-size: 0.95rem;
            line-height: 1.6;
        }

        /* 常见问题自助排查 & AI术语百科 */
        .trouble-section {
            background: #fff;
        }

        .trouble-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
        }

        .trouble-box h3, .glossary-box h3 {
            margin-bottom: 20px;
            color: var(--secondary);
        }

        .trouble-list, .glossary-list {
            list-style: none;
        }

        .trouble-item, .glossary-item {
            margin-bottom: 15px;
            padding-bottom: 15px;
            border-bottom: 1px solid var(--border-color);
        }

        .trouble-item h5, .glossary-item h5 {
            font-weight: 700;
            color: var(--secondary);
            margin-bottom: 5px;
        }

        .trouble-item p, .glossary-item p {
            font-size: 0.9rem;
            color: var(--text-light);
        }

        /* 行业资讯 / 知识库 */
        .news-section {
            background: var(--bg-light);
        }

        .news-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
        }

        .news-card {
            background: var(--bg-card);
            border-radius: 12px;
            padding: 25px;
            border: 1px solid var(--border-color);
        }

        .news-card h4 {
            font-size: 1.1rem;
            margin-bottom: 10px;
            color: var(--secondary);
        }

        .news-card p {
            font-size: 0.9rem;
            color: var(--text-light);
            margin-bottom: 15px;
        }

        .news-card a {
            color: var(--primary);
            font-weight: 600;
            font-size: 0.9rem;
        }

        /* 智能需求匹配与联系我们表单 */
        .contact-section {
            background: #fff;
        }

        .contact-grid {
            display: grid;
            grid-template-columns: 1.1fr 0.9fr;
            gap: 50px;
        }

        .form-wrapper {
            background: var(--bg-light);
            padding: 40px;
            border-radius: 16px;
            border: 1px solid var(--border-color);
        }

        .form-wrapper h3 {
            margin-bottom: 25px;
            color: var(--secondary);
        }

        .form-group {
            margin-bottom: 20px;
        }

        .form-group label {
            display: block;
            margin-bottom: 8px;
            font-weight: 600;
            font-size: 0.9rem;
        }

        .form-control {
            width: 100%;
            padding: 12px 16px;
            border: 1px solid var(--border-color);
            border-radius: 8px;
            font-size: 1rem;
            transition: var(--transition);
        }

        .form-control:focus {
            outline: none;
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(255, 46, 147, 0.1);
        }

        .form-submit-btn {
            background: linear-gradient(135deg, var(--primary), #E91E63);
            color: #fff;
            border: none;
            width: 100%;
            padding: 14px;
            border-radius: 8px;
            font-size: 1.1rem;
            font-weight: 700;
            cursor: pointer;
            box-shadow: 0 4px 15px rgba(255, 46, 147, 0.2);
            transition: var(--transition);
        }

        .form-submit-btn:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(255, 46, 147, 0.3);
        }

        .contact-info-box {
            display: flex;
            flex-direction: column;
            justify-content: center;
        }

        .info-item {
            margin-bottom: 25px;
        }

        .info-item h4 {
            color: var(--secondary);
            margin-bottom: 8px;
        }

        .qr-codes {
            display: flex;
            gap: 20px;
            margin-top: 25px;
        }

        .qr-item {
            text-align: center;
            font-size: 0.85rem;
            color: var(--text-light);
        }

        .qr-item img {
            width: 120px;
            height: 120px;
            border: 1px solid var(--border-color);
            border-radius: 8px;
            margin-bottom: 8px;
        }

        /* 友情链接 */
        .friend-links {
            background: var(--bg-light);
            padding: 30px 0;
            border-top: 1px solid var(--border-color);
            border-bottom: 1px solid var(--border-color);
            text-align: center;
        }

        .friend-links h4 {
            margin-bottom: 15px;
            font-size: 0.95rem;
            color: var(--text-light);
        }

        .links-wrap {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 15px;
        }

        .links-wrap a {
            font-size: 0.9rem;
            color: var(--text-dark);
        }

        .links-wrap a:hover {
            color: var(--primary);
        }

        /* 页脚 */
        footer {
            background: var(--secondary);
            color: #E2E8F0;
            padding: 60px 0 30px;
            font-size: 0.9rem;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 40px;
            margin-bottom: 40px;
        }

        .footer-col h4 {
            color: #fff;
            margin-bottom: 20px;
            font-size: 1.1rem;
            position: relative;
        }

        .footer-col h4::after {
            content: '';
            display: block;
            width: 30px;
            height: 2px;
            background: var(--primary);
            margin-top: 8px;
        }

        .footer-col ul {
            list-style: none;
        }

        .footer-col ul li {
            margin-bottom: 12px;
        }

        .footer-col ul li a {
            color: #A0AEC0;
        }

        .footer-col ul li a:hover {
            color: #fff;
        }

        .footer-bottom {
            border-top: 1px solid #2D3748;
            padding-top: 30px;
            text-align: center;
            color: #718096;
            font-size: 0.85rem;
        }

        /* 侧边浮动客服 */
        .floating-service {
            position: fixed;
            right: 20px;
            bottom: 40px;
            z-index: 999;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .float-btn {
            width: 50px;
            height: 50px;
            border-radius: 50%;
            background: var(--primary);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: 0 4px 15px rgba(255, 46, 147, 0.3);
            cursor: pointer;
            position: relative;
            transition: var(--transition);
        }

        .float-btn:hover {
            transform: scale(1.1);
        }

        .float-qr-pop {
            display: none;
            position: absolute;
            bottom: 60px;
            right: 0;
            background: #fff;
            padding: 15px;
            border-radius: 8px;
            box-shadow: 0 10px 30px rgba(0,0,0,0.15);
            border: 1px solid var(--border-color);
            text-align: center;
            width: 150px;
        }

        .float-qr-pop img {
            width: 120px;
            height: 120px;
            margin-bottom: 5px;
        }

        .float-btn:hover .float-qr-pop {
            display: block;
        }

        /* 响应式媒体查询 */
        @media (max-width: 1024px) {
            .services-section .service-cards,
            .production-section .prod-grid,
            .solutions-section .solution-tabs,
            .pricing-section .pricing-grid,
            .training-section .training-grid,
            .cases-section .cases-grid,
            .comments-section .comments-grid,
            .news-section .news-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .hero-stats {
                grid-template-columns: repeat(2, 1fr);
            }
            .about-grid, .network-grid, .trouble-grid, .contact-grid {
                grid-template-columns: 1fr;
            }
            .timeline {
                flex-direction: column;
                gap: 30px;
            }
            .timeline::before {
                display: none;
            }
            .timeline-step {
                width: 100%;
                display: flex;
                align-items: center;
                text-align: left;
                gap: 20px;
            }
            .step-number {
                margin: 0;
            }
        }

        @media (max-width: 768px) {
            .menu-toggle {
                display: block;
            }
            nav {
                display: none;
                position: absolute;
                top: 70px;
                left: 0;
                right: 0;
                background: #fff;
                flex-direction: column;
                padding: 20px;
                border-bottom: 1px solid var(--border-color);
                box-shadow: 0 10px 15px rgba(0,0,0,0.05);
            }
            nav.active {
                display: flex;
            }
            .hero-section h1 {
                font-size: 2.2rem;
            }
            .services-section .service-cards,
            .production-section .prod-grid,
            .solutions-section .solution-tabs,
            .pricing-section .pricing-grid,
            .training-section .training-grid,
            .cases-section .cases-grid,
            .comments-section .comments-grid,
            .news-section .news-grid,
            .footer-grid {
                grid-template-columns: 1fr;
            }
            .hero-stats {
                grid-template-columns: repeat(2, 1fr);
            }
        }